relating to his work with the Ordnance Survey (18359) and the Royal Irish
Academy (184353) and general correspondence on antiquarian, genealogical,
linguistic and literary matters (183862), the main correspondents including
Fr Mat Horgan, Blarney, County Cork, Revd William Reeves, Ballymena, County Antrim,
James McCurtin, Lahinch, County Clare, and D.H. Kelly, Castlekelly, County Roscommon.
as Professor of Archaeology and Ancient Irish History in the Catholic University,
mainly concerning his academic and research interests (185562).
personal correspondence, and personal financial and family documents (183963).